A reflex test of the knee is the basis for the term knee-jerk reaction.. A knee-jerk reaction is typically impulsive in nature and doesn't allow for someone to think things through. An outburst of anger is an example of a knee-jerk reaction.
As Figure 1 shows, the central processing unit consists of two parts: The control unit and the arithmetic/logic unit. Each part has a specific function. Before we discuss the control unit and the arithmetic/logic unit in detail, we need to consider data storage and its relationship to the central processing unit.
A type of high-speed memory that a processor can access more rapidly than main memory. central processing unit. The part of the computer that consists of three associated elements: the arithmetic/logic unit, the control unit, and the register areas. chip and pin card. A type of card that employs a computer chip that communicates with a card reader using radio frequencies; it does not need to be swiped at a terminal.